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Issue wiht my new digital clamp multimeter

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samEEEf

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Issue with my new digital clamp multimeter

I've just bought a digital clamp multimeter having the AC current rating of 600A (20A, 200A, 600A).
While testing at home I found that it is not showing current at the wire of refrigerator, Electric iron, PC. The electric iron's wattage rating is 1000w. When measuring at the main circuit breaker it shows 2.30A. Probably this meter can't show low current. But in the specification it told at range 20 it can measure having resolution of 10mA. So, setting at range 20A I should get 10mA, 20mA, 50mA etc.
Could any experienced brother help me by explaining this matter? Is my meter faulty or generally Clamp meter can't measure low Ampere rating!
 

I tried with both wires. Probably I was unable to measure due to this case (pdf doc).

But one wire is the phase and another wire is the neutral. The neutral wire is grounded. Ideally there should not be any current flow through the ground wire, should it?
 

The current that goes into any device comes out too unless you have a current leak of some kind.
It is like any voltage source , for example with a battery the current that goes to a device through the plus pole returns to the source from the minus pole.
AC is the same, what goes through the phase returns through the neutral.
You have to clamp one wire only or they cancel each other.

Alex
 

Yes I checked with the 1000W electric iron and found working fine with one wire. Current shown like 4.33A which seems okay. Sorry to be confused about the AC phase, neutral and the ground. I thought that the current flows only in the phase wire. As the neutral or the ground terminal of the device has a zero voltage level, the current through the neutral wire should be about to zero.
 
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